Dual-polarization three-beam antenna and feed network device thereof

Abstract

The invention discloses a dual-polarization three-beam antenna and a feed network device thereof. The dual-polarization three-beam antenna comprises a metal substrate, at least four rows of antenna arrays, first polarization power dividers, second polarization powder dividers, a first polarization Butler matrix feed network and a second polarization Butler matrix feed network, wherein the numbers of the first polarization power dividers and the second polarization power dividers are the same with the number of the antenna arrays, each polarization Butler matrix feed network comprises a Butler matrix and a power divider, and the Butler matrix comprises a first electric bridge, a second electric bridge, a third electric bridge, a first phase shifter and a second phase shifter. The antenna structure can form three fixedly-oriented dual-polarization wave beams in a horizontal direction and form a fixedly-oriented dual-polarization wave beam in a vertical direction, an overlapping region among the three wave beams in the horizontal direction is small, the number of device RRU can be increased, and thus, the data capacity is increased. In the dual-polarization three-beam antenna, the data capacity of the antenna is increased, the dual-polarization three-beam antenna has the advantages of good interference resistant effects, stable performance, simplicity in structure and light weight, and is easy to install, the cost can be effectively reduced, and the demand of a stadium or a large-area coverage region is met.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a dual-polarized three-beam antenna and a feeding network device for a mobile communication base station. Background technique [0002] With the rapid development of mobile communication technology and the sharp increase of mobile communication business volume, the coverage area of ​​mobile communication network is constantly expanding and perfecting. And it becomes more and more important, the demand is larger and larger, and the beam form is required to be more and more complex. [0003] Traditional base station antennas communicate by generating a fixed wide beam in the coverage area. Due to the continuous increase in communication traffic and the increase in coverage area, it is impossible to meet the demand for one antenna, and multi-faceted antennas are prone to interference. Cost It will also double, and it will not get very good results. Contents of the ...

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Problems solved by technology

[0003] Traditional base station antennas communicate by generating a fixed wide beam in the coverage area. Due to the continuous increase in communication traffic and the increase in coverage area, it is impossible to meet the demand for one antenna, and multi-faceted antennas are prone to interference. Cost also doubles, and doesn't get very good results

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